Ruby Issue Tracking System

11/07/2025

08:32 AM Ruby Misc #21647: DevMeeting-2025-11-13

* [Feature #21637] tracepoint: add support for global variables read/write events (viralpraxis)
* There seems to be no straightforward way to trace gvar reads/writes in runtime
* `Kernel.trace_var` only works when gvar name is know... viralpraxis (Iaroslav Kurbatov)

10/20/2025

04:24 PM Ruby Revision 5d2a244b (git): [Bug #21644] compile.c: fix `newrange` INSN peephole optimization for chilled string

ref: https://bugs.ruby-lang.org/issues/21644
```shell
$ ruby -v -e '("a" || "b").."c"'
ruby 3.4.7 (2025-10-08 revision 7a5688e2a2) +PRISM [x86_64-linux]
-e:1: warning: possibly useless use of .. in void context
-e:1: [BUG] Stack consist... viralpraxis (Iaroslav Kurbatov)

05:17 AM Ruby Bug #21644 (Closed): Stack consistency error for the `newrange` INSN peephole optimization with chilled string

Applied in changeset commit:git|7587e92910e7604a4c66f2b804bfa2076339c6ff.
----------
[Bug #21644] compile.c: fix `newrange` INSN peephole optimization for chilled string
ref: https://bugs.ruby-lang.org/issues/21644
```shell
$ ruby -v ... viralpraxis (Iaroslav Kurbatov)

04:32 AM Ruby Bug #21644 (Closed): Stack consistency error for the `newrange` INSN peephole optimization with chilled string

PR:https://github.com/ruby/ruby/pull/14879
Confirmed on every version since 3.4.
``` shell
$ ruby -v -e '("a" || "b").."c"'
ruby 3.4.7 (2025-10-08 revision 7a5688e2a2) +PRISM [x86_64-linux]
-e:1: warning: possibly useless use of... viralpraxis (Iaroslav Kurbatov)

05:17 AM Ruby Revision 7587e929 (git): [Bug #21644] compile.c: fix `newrange` INSN peephole optimization for chilled string

ref: https://bugs.ruby-lang.org/issues/21644
```shell
$ ruby -v -e '("a" || "b").."c"'
ruby 3.4.7 (2025-10-08 revision 7a5688e2a2) +PRISM [x86_64-linux]
-e:1: warning: possibly useless use of .. in void context
-e:1: [BUG] Stack consist... viralpraxis (Iaroslav Kurbatov)

10/13/2025

09:13 PM Ruby Feature #21637: Tracing global variable assignment

alanwu (Alan Wu) wrote in #note-2:
> > Currently, there is no straightforward way to track global variable assignments at runtime.
> ...
I'm aware of `Kernel#trace_var`, but it does not cover cases where the global variables aren't kno... viralpraxis (Iaroslav Kurbatov)

07:36 PM Ruby Feature #21637 (Feedback): Tracing global variable assignment

## Motivation
Currently, there is no straightforward way to track global variable assignments at runtime.
The only workaround I am aware of involves using the `line` TracePoint event, combined with manipulation of the source code's... viralpraxis (Iaroslav Kurbatov)

07/29/2025

09:42 AM Ruby Bug #21513 (Closed): Converting endless range to set hangs

Applied in changeset commit:git|d4020dd5faf28486123853e7f00c36139fc07793.
----------
[Bug #21513] Raise on converting endless range to set
ref: https://bugs.ruby-lang.org/issues/21513
Before this patch, trying to convert endless range... viralpraxis (Iaroslav Kurbatov)

09:42 AM Ruby Revision d4020dd5 (git): [Bug #21513] Raise on converting endless range to set

ref: https://bugs.ruby-lang.org/issues/21513
Before this patch, trying to convert endless range (e.g. `(1..)`) to set
(using `to_set`) would hang viralpraxis (Iaroslav Kurbatov)

07/15/2025

10:04 PM Ruby Bug #21513: Converting endless range to set hangs

I've opened https://github.com/ruby/ruby/pull/13902 viralpraxis (Iaroslav Kurbatov)